***PLEASE NOTE: The paperback version of this book has a "Classic Comic" (black & white) interior.*** In Relativity Now for Teens & Tweens: Einstein's Theories Explained, readers will gain insight into the nature of time, gravity, light, and the very fabric of our universe. Along the way, cartoon dogs demonstrate the theories of Special and General Relativity. The Relativity Now books have been described as "brilliant, unprecedented,...